docs: def slices(self):
          """
          The bounding box as a tuple of `slice` objects.
  
          The slice tuple is in numpy axis order (i.e. ``(y, x)``) and
          therefore can be used to slice numpy arrays.
          """
  
          return (slice(self.iymin, self.iymax), slice(self.ixmin, self.ixmax))